EXHIBIT 11 PLY GEM INDUSTRIES, INC. AND SUBSIDIARIES SCHEDULE OF COMPUTATION OF NET INCOME PER SHARE YEAR ENDED DECEMBER 31, 1993 1992 ----------------------- ----------------------- FULLY FULLY PRIMARY DILUTED PRIMARY DILUTED ----------- ----------- ----------- ----------- Weighted average number of common shares outstanding during year................... 10,814,000 10,814,000 10,562,483 10,562,483 Excess of weighted average number of shares issuable upon exercise of employee stock options over 20% of shares outstanding at end of year.... 3,403,000 3,403,000 2,502,741 2,502,741 ----------- ----------- ----------- ----------- Weighted average number of shares........................ 14,217,000 14,217,000 13,065,224 13,065,224 ----------- ----------- ----------- ----------- Proceeds available to repay debt: From exercise of options, including tax benefits, at average market price........ $31,541,000 $22,046,854 From exercise of options, including tax benefits, at year-end market price....... $28,379,000 $20,230,728 Other........................ 1,360,000 1,360,000 1,538,000 1,538,000 ----------- ----------- ----------- ----------- 32,901,000 29,739,000 23,584,854 21,768,728 ----------- ----------- ----------- ----------- Interest saved................. 1,513,000 1,368,000 1,347,335 1,258,344 Other.......................... 198,000 187,000 187,119 184,298 ----------- ----------- ----------- ----------- 1,711,000 1,555,000 1,534,454 1,442,642 ----------- ----------- ----------- ----------- Increase to income, net of tax- es............................ 1,112,000 1,011,000 1,012,740 952,144 Net income as reported......... 9,650,000 9,650,000 6,305,756 6,305,756 ----------- ----------- ----------- ----------- Adjusted net income............ $10,762,000 $10,661,000 $ 7,318,496 $ 7,257,900 ----------- ----------- ----------- ----------- Per share...................... $.76 $.75 $.56 $.56